What is demonweb?

Some articles on demonweb:

Queen Of The Demonweb Pits - Publication History
... Queen of the Demonweb Pits was the tournament dungeon for the Origins '79 game convention ... Queen of the Demonweb Pits was intended to be the final adventure in a series of seven by Gygax ... Queen of the Demonweb Pits was made into a novel of the same name by Paul Kidd for the Greyhawk Classics series ...
Expedition To The Demonweb Pits
... Expedition to the Demonweb Pits is a super-adventure module for the 3.5 edition of the Dungeons Dragons roleplaying game ... was heavily influenced by the 1980 adventure module, Queen of the Demonweb Pits ...
List Of Advanced Dungeons & Dragons 2nd Edition Monsters - Other Sources - Forgotten Realms - TSR9326 - The Drow of The Underdark (1991)
117 Monsters of Faerûn (2001) Pedipalp 118-119 Queen of the Demonweb Pits (1980), Monster Manual II (1983), Tome of Horrors (2002) Large (Schizomida), Huge (Amblypygus) and Giant (Uropygi) Rothé, Deep 120-1 ...
Eilistraee
... The Dark Maiden's home plane is the Demonweb Pits, along with the rest of the drow pantheon, which was originally located in the 66th layer of the Abyss, however following the events of The War of ... It is currently believed that Eilistraee rarely even visits the Demonweb Pits ...
Demonweb Pits - In Forgotten Realms
... In the 3rd-Edition Forgotten Realms campaign setting the Demonweb Pits exists as a plane separate from the Abyss, due to the events of the War of the Spider Queen series ... The Demonweb Pits is still a layer of the Abyss outside the Forgotten Realms cosmology ... This carries over into 4th edition, where the Demonweb Pits are located in the Astral Sea, along with the dominions of the other greater gods ...